/**
  ******************************************************************************
  * @file    stm32g4xx_hal_timebase_tim_template.c
  * @author  MCD Application Team
  * @brief   HAL time base based on the hardware TIM Template.
  *
  *          This file override the native HAL time base functions (defined as weak)
  *          the TIM time base:
  *           + Initializes the TIM peripheral to generate a Period elapsed Event each 1ms
  *           + HAL_IncTick is called inside HAL_TIM_PeriodElapsedCallback ie each 1ms
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  @verbatim
  ==============================================================================
                        ##### How to use this driver #####
  ==============================================================================
    [..]
    This file must be copied to the application folder and modified as follows:
    (#) Rename it to 'stm32g4xx_hal_timebase_tim.c'
    (#) Add this file and the TIM HAL driver files to your project and make sure
       HAL_TIM_MODULE_ENABLED is defined in stm32g4xx_hal_conf.h

    [..]
    (@) The application needs to ensure that the time base is always set to 1 millisecond
       to have correct HAL operation.

  @endverbatim
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32g4xx_hal.h"

/** @addtogroup STM32G4xx_HAL_Driver
  * @{
  */

/** @addtogroup HAL_TimeBase
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef        TimHandle;
/* Private function prototypes -----------------------------------------------*/
void TIM6_DAC_IRQHandler(void);
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  This function configures the TIM6 as a time base source.
  *         The time source is configured  to have 1ms time base with a dedicated
  *         Tick interrupt priority.
  * @note   This function is called  automatically at the beginning of program after
  *         reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
  * @param  TickPriority: Tick interrupt priority.
  * @retval HAL status
  */
//HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
//{
//  RCC_ClkInitTypeDef    clkconfig;
//  uint32_t              uwTimclock;
//  uint32_t              uwAPB1Prescaler;
//  uint32_t              uwPrescalerValue;
//  uint32_t              pFLatency;
//  HAL_StatusTypeDef     status;
//
//  /* Configure the TIM6 IRQ priority */
//  HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority, 0U);
//
//  /* Enable the TIM6 global Interrupt */
//  HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
//
//  /* Enable TIM6 clock */
//  __HAL_RCC_TIM6_CLK_ENABLE();
//
//  /* Get clock configuration */
//  HAL_RCC_GetClockConfig(&clkconfig, &pFLatency);
//
//  /* Get APB1 prescaler */
//  uwAPB1Prescaler = clkconfig.APB1CLKDivider;
//
//  /* Compute TIM6 clock */
//  if (uwAPB1Prescaler == RCC_HCLK_DIV1)
//  {
//    uwTimclock = HAL_RCC_GetPCLK1Freq();
//  }
//  else
//  {
//    uwTimclock = 2U * HAL_RCC_GetPCLK1Freq();
//  }
//
//  /* Compute the prescaler value to have TIM6 counter clock equal to 1MHz */
//  uwPrescalerValue = (uint32_t)((uwTimclock / 1000000U) - 1U);
//
//  /* Initialize TIM6 */
//  TimHandle.Instance = TIM6;
//
//  /* Initialize TIMx peripheral as follow:
//  + Period = [(TIM6CLK/1000) - 1]. to have a (1/1000) s time base.
//  + Prescaler = (uwTimclock/1000000 - 1) to have a 1MHz counter clock.
//  + ClockDivision = 0
//  + Counter direction = Up
//  */
//  TimHandle.Init.Period = (1000000U / 1000U) - 1U;
//  TimHandle.Init.Prescaler = uwPrescalerValue;
//  TimHandle.Init.ClockDivision = 0;
//  TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
//  status = HAL_TIM_Base_Init(&TimHandle);
//  if (status == HAL_OK)
//  {
//    /* Start the TIM time Base generation in interrupt mode */
//    status = HAL_TIM_Base_Start_IT(&TimHandle);
//    if (status == HAL_OK)
//    {
//      /* Configure the SysTick IRQ priority */
//      if (TickPriority < (1UL << __NVIC_PRIO_BITS))
//      {
//        /* Configure the TIM IRQ priority */
//        HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority, 0U);
//        uwTickPrio = TickPriority;
//      }
//      else
//      {
//        status = HAL_ERROR;
//      }
//    }
//  }
//
//  /* Return function status */
//  return status;
//}

/**
  * @brief  Suspend Tick increment.
  * @note   Disable the tick increment by disabling TIM6 update interrupt.
  * @param  None
  * @retval None
  */
void HAL_SuspendTick(void)
{
  /* Disable TIM6 update interrupt */
  __HAL_TIM_DISABLE_IT(&TimHandle, TIM_IT_UPDATE);
}

/**
  * @brief  Resume Tick increment.
  * @note   Enable the tick increment by enabling TIM6 update interrupt.
  * @param  None
  * @retval None
  */
void HAL_ResumeTick(void)
{
  /* Enable TIM6 update interrupt */
  __HAL_TIM_ENABLE_IT(&TimHandle, TIM_IT_UPDATE);
}

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM6 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
//void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
//{
//  HAL_IncTick();
//}

/**
  * @brief  This function handles TIM interrupt request.
  * @param  None
  * @retval None
  */
void TIM6_DAC_IRQHandler(void)
{
  HAL_TIM_IRQHandler(&TimHandle);
}

/**
  * @}
  */

/**
  * @}
  */

